极地多点低温低功耗高精度柔性温度链的设计
|
摘要
为有效提高极地冰盖低温环境下温度测量的精度,设计了一款基于Pt1000的多点低温低功耗高精度铂电阻柔性温度链。温度链由主机和多个从机组成,主机用于读取整条温度链的数据并与外界进行数据交互,从机用于采集和上传温度数据,主机和从机之间采用RS485总线通讯方式。每个单点铂电阻温度测量单元都采用软件校正,单点测温误差不超过0.006 9℃。室内低温实验和现场试验表明,该温度链对低温环境下多点同时测温整体可靠性较高,适用于在极地环境下对冰川冰雪的温度场剖面检测。
In order to effectively improve the accuracy of temperature measurement in the low temperature environment of the polar ice sheet,we designed a multi-point platinum resistance flexible temperature chain based on Pt1000,which has the advantages of low temperature,low power and high precision. The temperature chain consists of a master and multiple slaves. The master is used to read the entire temperature chain's data and make data exchange with the external equipment. The slave is used to collect and upload temperature data. RS485 bus communication is used between the master and slaves. Each temperature measurement unit of single-point platinum resistance has been corrected through software,and the error of single-point temperature measurement does not exceed 0.006 9 ℃. In addition,low temperature experiments indoor as well as field tests has shown that the overall reliability of the temperature chain is higher for simultaneous temperature measurement at multiple points in the low temperature environment,which is suitable for detecting the temperature field profile of glacial ice and snow in the polar environment.
In order to effectively improve the accuracy of temperature measurement in the low temperature environment of the polar ice sheet,we designed a multi-point platinum resistance flexible temperature chain based on Pt1000,which has the advantages of low temperature,low power and high precision. The temperature chain consists of a master and multiple slaves. The master is used to read the entire temperature chain's data and make data exchange with the external equipment. The slave is used to collect and upload temperature data. RS485 bus communication is used between the master and slaves. Each temperature measurement unit of single-point platinum resistance has been corrected through software,and the error of single-point temperature measurement does not exceed 0.006 9 ℃. In addition,low temperature experiments indoor as well as field tests has shown that the overall reliability of the temperature chain is higher for simultaneous temperature measurement at multiple points in the low temperature environment,which is suitable for detecting the temperature field profile of glacial ice and snow in the polar environment.
引文
[1] 王叶堂,侯书贵.南极冰盖10 m深度处粒雪温度空间分布[J].中国科学:地球科学,2010,40(11):1489-1503.
[2] 罗文广,兰红莉,陆子杰.基于单总线的多点温度测量技术[J].传感器技术,2002,21(3):47-50.
[3] 陈良光,李雄杰,徐斌.大规模多点测温中缩短巡检周期的一种DS18B20访问协议[J].传感技术学报,2006,19(5):1580-1584.
[4] 杨振东.多点远程温度采集系统[J].黑龙江科技信息,2014(3):114-115.
[5] 孔令荣,王昊,庄涛.多点无线温度监测系统研究与实现[J].电子测量技术,2014,37(8):97-103.
[6] 王金龙,王安敏,赵经,等.基于ARM和ADS1248高精度测温装置的设计[J].自动化仪表,2017,38(8):73-77.
[7] Yixi F,Kaizhuo L,Qunfei Z,et al.A High-Precision Temperature Measurement System Based on Noise Cancellation[C]//TENCON 2013-2013 IEEE Region 10 Conference(31194).IEEE,2013:1-4.
[8] 李玉娜.基于PT100铂热电阻温度传感器设计[J].中国教育技术装备,2016(16):33-35.
[9] 袁开鸿,魏丽君,唐冬梅.基于温度传感器Pt1000的高精度量热仪[J].仪表技术与传感器,2014(6):42-44.
[10] 刘刚,陈树新.基于STM32的铂热电阻桥式测温系统设计与实现[J].自动化与仪表,2014(1):53-56.
[11] 徐莉振,鲍敏.面向Pt100铂电阻的高精度多路测温系统[J].机电工程,2013,30(1):65-68.
[12] 李文宝.智能温度传感器的研究[D].西安:西安理工大学,2009.
[13] Maxim and Gert N Helles.PT 100 Temperature Sensor[J].Global Electronics China,2003,08:64-65.
[14] 倪新蕾.非平衡电桥的输出特性研究[J].大学物理,2009(3):33-35.DOI:10.3969/j.issn.1000-0712.2009.03.012.
[15] 禹言春,张丽丽,王贺涛.单片机的多机通信[J].安徽农学通报,2007(9):157-158.章恒(1994-),男,汉族,河南商丘人,太原理工大学电气与动力工程学院硕士研究生,主要研究方向为新型传感与智能仪器技术,985699759@qq.com;窦银科(1973-),男,汉族,陕西凤翔人,太原理工大学电气与动力工程学院博士生导师,主要研究方向为新型传感与智能仪器技术、新能源与电力电子控制技术,douyk8888cn@126.com。
[2] 罗文广,兰红莉,陆子杰.基于单总线的多点温度测量技术[J].传感器技术,2002,21(3):47-50.
[3] 陈良光,李雄杰,徐斌.大规模多点测温中缩短巡检周期的一种DS18B20访问协议[J].传感技术学报,2006,19(5):1580-1584.
[4] 杨振东.多点远程温度采集系统[J].黑龙江科技信息,2014(3):114-115.
[5] 孔令荣,王昊,庄涛.多点无线温度监测系统研究与实现[J].电子测量技术,2014,37(8):97-103.
[6] 王金龙,王安敏,赵经,等.基于ARM和ADS1248高精度测温装置的设计[J].自动化仪表,2017,38(8):73-77.
[7] Yixi F,Kaizhuo L,Qunfei Z,et al.A High-Precision Temperature Measurement System Based on Noise Cancellation[C]//TENCON 2013-2013 IEEE Region 10 Conference(31194).IEEE,2013:1-4.
[8] 李玉娜.基于PT100铂热电阻温度传感器设计[J].中国教育技术装备,2016(16):33-35.
[9] 袁开鸿,魏丽君,唐冬梅.基于温度传感器Pt1000的高精度量热仪[J].仪表技术与传感器,2014(6):42-44.
[10] 刘刚,陈树新.基于STM32的铂热电阻桥式测温系统设计与实现[J].自动化与仪表,2014(1):53-56.
[11] 徐莉振,鲍敏.面向Pt100铂电阻的高精度多路测温系统[J].机电工程,2013,30(1):65-68.
[12] 李文宝.智能温度传感器的研究[D].西安:西安理工大学,2009.
[13] Maxim and Gert N Helles.PT 100 Temperature Sensor[J].Global Electronics China,2003,08:64-65.
[14] 倪新蕾.非平衡电桥的输出特性研究[J].大学物理,2009(3):33-35.DOI:10.3969/j.issn.1000-0712.2009.03.012.
[15] 禹言春,张丽丽,王贺涛.单片机的多机通信[J].安徽农学通报,2007(9):157-158.章恒(1994-),男,汉族,河南商丘人,太原理工大学电气与动力工程学院硕士研究生,主要研究方向为新型传感与智能仪器技术,985699759@qq.com;窦银科(1973-),男,汉族,陕西凤翔人,太原理工大学电气与动力工程学院博士生导师,主要研究方向为新型传感与智能仪器技术、新能源与电力电子控制技术,douyk8888cn@126.com。